[INFO] fetching crate dryoc 0.3.8...
[INFO] documenting dryoc-0.3.8 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate dryoc 0.3.8 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate dryoc 0.3.8 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dryoc 0.3.8
[INFO] finished tweaking crates.io crate dryoc 0.3.8
[INFO] tweaked toml for crates.io crate dryoc 0.3.8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded static_assertions v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3e38fa86eadf1c03c48b1eb06a9adb0955616d4194cb682d1d14546a7b829b2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f3e38fa86eadf1c03c48b1eb06a9adb0955616d4194cb682d1d14546a7b829b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3e38fa86eadf1c03c48b1eb06a9adb0955616d4194cb682d1d14546a7b829b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3e38fa86eadf1c03c48b1eb06a9adb0955616d4194cb682d1d14546a7b829b2", kill_on_drop: false }`
[INFO] [stdout] f3e38fa86eadf1c03c48b1eb06a9adb0955616d4194cb682d1d14546a7b829b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 62ff32a7af7c21795a0c23136715fe5251c9103a83e0baa5ef072bcd132988c0
[INFO] running `Command { std: "docker" "start" "-a" "62ff32a7af7c21795a0c23136715fe5251c9103a83e0baa5ef072bcd132988c0", kill_on_drop: false }`
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking cipher v0.2.5
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]     Checking salsa20 v0.7.2
[INFO] [stderr]     Checking chacha20 v0.6.0
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking curve25519-dalek v3.2.0
[INFO] [stderr]  Documenting dryoc v0.3.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature 'allocator_api'
[INFO] [stdout]    --> src/protected.rs:805:55
[INFO] [stdout]     |
[INFO] [stdout] 805 | pub struct HeapByteArray<const LENGTH: usize>(Vec<u8, PageAlignedAllocator>);
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #32838 <https://github.com/rust-lang/rust/issues/32838> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'allocator_api'
[INFO] [stdout]    --> src/protected.rs:813:30
[INFO] [stdout]     |
[INFO] [stdout] 813 | pub struct HeapBytes(Vec<u8, PageAlignedAllocator>);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #32838 <https://github.com/rust-lang/rust/issues/32838> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `dryoc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name dryoc src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="u64_backend"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-7925d1bf53c9b12a.rmeta --extern chacha20=/opt/rustwide/target/debug/deps/libchacha20-7672bf9cc61b390c.rmeta --extern curve25519_dalek=/opt/rustwide/target/debug/deps/libcurve25519_dalek-99da9a78bdffdaea.rmeta --extern generic_array=/opt/rustwide/target/debug/deps/libgeneric_array-e6b019cdb61312b0.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-5e37eee3e84fafab.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-34f3b748d9af774b.rmeta --extern rand_core=/opt/rustwide/target/debug/deps/librand_core-1971410e16d7eb4a.rmeta --extern salsa20=/opt/rustwide/target/debug/deps/libsalsa20-4c4fca967c81ee1d.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-f9db1dff45806c4a.rmeta --extern subtle=/opt/rustwide/target/debug/deps/libsubtle-14ae9e8ef6bf0ef5.rmeta --extern zeroize=/opt/rustwide/target/debug/deps/libzeroize-5aa38a7c28dcbba6.rmeta --cap-lints=warn --crate-version 0.3.8` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "62ff32a7af7c21795a0c23136715fe5251c9103a83e0baa5ef072bcd132988c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62ff32a7af7c21795a0c23136715fe5251c9103a83e0baa5ef072bcd132988c0", kill_on_drop: false }`
[INFO] [stdout] 62ff32a7af7c21795a0c23136715fe5251c9103a83e0baa5ef072bcd132988c0
